Headboard



FIG. 1 is a perspective view of a headboard showing my new design;

FIG. 2 is a front elevational view thereof; and,

FIG. 3 is a cross-sectional view thereof taken along lines 3--3 of FIG. 2; and

FIG. 4 is a side view thereof.

The broken lines are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a headboard, as shown and described. 